Rainbow Electronics MAX1182 - Manual (Page 4)

MAX1182
Dual 10-Bit, 65Msps, +3V, Low-Power ADC with
Internal Reference and Parallel Outputs
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ELECTRICAL CHARACTERISTICS (continued)
(V DD = +3V, OV DD = +2.5V; 0.1µF and 1.0µF capacitors from REFP, REFN, and COM to GND; REFOUT connected to REFIN through
a 10k Ω resistor, V
IN = 2Vp-p (differential w.r.t. COM), C L = 10pF at digital outputs (Note 5), f CLK = 65MHz (50% duty cycle),
T A = T MIN to T MAX , unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Maximum REFP, COM Source
Current
I SOURCE >5 mA
Maximum REFP, COM Sink
Current
I SINK 250 µA
Maximum REFN Source Current I SOURCE 250 µA
Maximum REFN Sink Current I SINK >5 mA
UNBUFFERED EXTERNAL REFERENCE (V REFIN = AGND, reference voltage applied to REFP, REFN, and COM)
REFP, REFN Input Resistance
R REFP ,
R REFN
Measured between REFP and COM, and
REFN and COM
4 k Ω
Differential Reference Input
Voltage
∆V
REF
∆V
REF = V REFP – V REFN
1.024
±10%
V
COM Input Voltage V COM
VDD/2
± 10%
V
REFP Input Voltage V
REFP
V
COM
+
∆V
REF /2
V
REFN Input Voltage V REFN
V COM -
∆V
REF /2
V
DIGITAL INPUTS (CLK, PD, OE, SLEEP, T/B)
CLK 0.8 x V DD
Input High Threshold V IH
PD, OE, SLEEP, T/B 0.8 x OV
DD
V
CLK 0.2 x V DD
Input Low Threshold V IL
PD, OE, SLEEP, T/B 0.2 x OV DD
V
Input Hysteresis V HYST 0.1 V
I IH V IH = OV DD or V DD (CLK) ±5
Input Leakage
I IL V IL = 0 ±5
µA
Input Capacitance C IN 5 pF
DIGITAL OUTPUTS (D9A–D0A, D9B–D0B)
Output Voltage Low V OL I SINK = 200µA 0.2 V
Output Voltage High V OH I SOURCE = 200µA OV DD - 0.2 V
Three-State Leakage Current I
LEAK
OE = OV
DD
±10 µA
Three-State Output Capacitance C OUT
OE = OV
DD 5 pF